人类的褪黑激素水平在夜晚上升，以响应黑暗和昼夜节律钟发出的信号。
In humans melatonin levels rise at night, in response to darkness and cues from the circadian clock.
而驯鹿呢，虽然它们没有昼夜节律钟，其褪黑激素水平仍然会在黑暗的时候上升，光亮的时候下降，从而使它们的昼夜分点达到理想状态，进而与年生物钟同步。
In reindeer, even if they're missing a circadian clock, melatonin levels still spike when it's dark and drop when it's light, making the equinoxes an ideal time to synchronize their annual clocks.
这些节律包括血压、体温、激素水平、血中免疫细胞的数量、睡眠觉醒周期循环等。
These rhythms include blood pressure, body temperature, hormone level, the number of immune cells in blood, and the sleep wake cycle.
应用推荐